body{
	background-image: url(petite.jpg);
	background-attachment: fixed;
	background-repeat: repeat-x;
/* 	background-position: center; */
	background-color: #fff;
}

#logo {
   position: absolute;
   top: 50%;
   left: 50%;
   width: 500px;
   height: 200px;
   margin-top: -200px; /* Half the height */
   margin-left: -250px; /* Half the width */
}